fz1isolem - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > fz1isolem		Structured version Visualization version GIF version

Theorem fz1isolem 14426

Description: Lemma for fz1iso 14427. (Contributed by Mario Carneiro, 2-Apr-2014.)

**Hypotheses**
Ref	Expression
fz1iso.1	⊢ 𝐺 = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 1) ↾ ω)
fz1iso.2	⊢ 𝐵 = (ℕ ∩ (^◡ < “ {((♯‘𝐴) + 1)}))
fz1iso.3	⊢ 𝐶 = (ω ∩ (^◡𝐺‘((♯‘𝐴) + 1)))
fz1iso.4	⊢ 𝑂 = OrdIso(𝑅, 𝐴)

**Assertion**
Ref	Expression
fz1isolem	⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ∃𝑓 𝑓 Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴))

Distinct variable groups: 𝑓,𝑛,𝐴 𝐵,𝑓 𝑓,𝐺 𝑓,𝑂 𝑅,𝑓 Allowed substitution hints: 𝐵(𝑛) 𝐶(𝑓,𝑛) 𝑅(𝑛) 𝐺(𝑛) 𝑂(𝑛)

**Proof of Theorem fz1isolem**
Step	Hyp	Ref	Expression
1		hashcl 14320	. . . . . . . . 9 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ₀)
2	1	adantl 480	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (♯‘𝐴) ∈ ℕ₀)
3		nnuz 12869	. . . . . . . . . . 11 ⊢ ℕ = (ℤ_≥‘1)
4		1z 12596	. . . . . . . . . . . . 13 ⊢ 1 ∈ ℤ
5		fz1iso.1	. . . . . . . . . . . . 13 ⊢ 𝐺 = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 1) ↾ ω)
6	4, 5	om2uzisoi 13923	. . . . . . . . . . . 12 ⊢ 𝐺 Isom E , < (ω, (ℤ_≥‘1))
7		isoeq5 7320	. . . . . . . . . . . 12 ⊢ (ℕ = (ℤ_≥‘1) → (𝐺 Isom E , < (ω, ℕ) ↔ 𝐺 Isom E , < (ω, (ℤ_≥‘1))))
8	6, 7	mpbiri 257	. . . . . . . . . . 11 ⊢ (ℕ = (ℤ_≥‘1) → 𝐺 Isom E , < (ω, ℕ))
9	3, 8	ax-mp 5	. . . . . . . . . 10 ⊢ 𝐺 Isom E , < (ω, ℕ)
10		isocnv 7329	. . . . . . . . . 10 ⊢ (𝐺 Isom E , < (ω, ℕ) → ^◡𝐺 Isom < , E (ℕ, ω))
11	9, 10	ax-mp 5	. . . . . . . . 9 ⊢ ^◡𝐺 Isom < , E (ℕ, ω)
12		nn0p1nn 12515	. . . . . . . . 9 ⊢ ((♯‘𝐴) ∈ ℕ₀ → ((♯‘𝐴) + 1) ∈ ℕ)
13		fz1iso.2	. . . . . . . . . 10 ⊢ 𝐵 = (ℕ ∩ (^◡ < “ {((♯‘𝐴) + 1)}))
14		fz1iso.3	. . . . . . . . . . 11 ⊢ 𝐶 = (ω ∩ (^◡𝐺‘((♯‘𝐴) + 1)))
15		fvex 6903	. . . . . . . . . . . . 13 ⊢ (^◡𝐺‘((♯‘𝐴) + 1)) ∈ V
16	15	epini 6094	. . . . . . . . . . . 12 ⊢ (^◡ E “ {(^◡𝐺‘((♯‘𝐴) + 1))}) = (^◡𝐺‘((♯‘𝐴) + 1))
17	16	ineq2i 4208	. . . . . . . . . . 11 ⊢ (ω ∩ (^◡ E “ {(^◡𝐺‘((♯‘𝐴) + 1))})) = (ω ∩ (^◡𝐺‘((♯‘𝐴) + 1)))
18	14, 17	eqtr4i 2761	. . . . . . . . . 10 ⊢ 𝐶 = (ω ∩ (^◡ E “ {(^◡𝐺‘((♯‘𝐴) + 1))}))
19	13, 18	isoini2 7338	. . . . . . . . 9 ⊢ ((^◡𝐺 Isom < , E (ℕ, ω) ∧ ((♯‘𝐴) + 1) ∈ ℕ) → (^◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
20	11, 12, 19	sylancr 585	. . . . . . . 8 ⊢ ((♯‘𝐴) ∈ ℕ₀ → (^◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
21	2, 20	syl 17	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
22		nnz 12583	. . . . . . . . . . . . 13 ⊢ (𝑓 ∈ ℕ → 𝑓 ∈ ℤ)
23	2	nn0zd 12588	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (♯‘𝐴) ∈ ℤ)
24		eluz 12840	. . . . . . . . . . . . 13 ⊢ ((𝑓 ∈ ℤ ∧ (♯‘𝐴) ∈ ℤ) → ((♯‘𝐴) ∈ (ℤ_≥‘𝑓) ↔ 𝑓 ≤ (♯‘𝐴)))
25	22, 23, 24	syl2anr 595	. . . . . . . . . . . 12 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → ((♯‘𝐴) ∈ (ℤ_≥‘𝑓) ↔ 𝑓 ≤ (♯‘𝐴)))
26		zleltp1 12617	. . . . . . . . . . . . . 14 ⊢ ((𝑓 ∈ ℤ ∧ (♯‘𝐴) ∈ ℤ) → (𝑓 ≤ (♯‘𝐴) ↔ 𝑓 < ((♯‘𝐴) + 1)))
27	22, 23, 26	syl2anr 595	. . . . . . . . . . . . 13 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ≤ (♯‘𝐴) ↔ 𝑓 < ((♯‘𝐴) + 1)))
28		ovex 7444	. . . . . . . . . . . . . 14 ⊢ ((♯‘𝐴) + 1) ∈ V
29		vex 3476	. . . . . . . . . . . . . . 15 ⊢ 𝑓 ∈ V
30	29	eliniseg 6092	. . . . . . . . . . . . . 14 ⊢ (((♯‘𝐴) + 1) ∈ V → (𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)}) ↔ 𝑓 < ((♯‘𝐴) + 1)))
31	28, 30	ax-mp 5	. . . . . . . . . . . . 13 ⊢ (𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)}) ↔ 𝑓 < ((♯‘𝐴) + 1))
32	27, 31	bitr4di 288	. . . . . . . . . . . 12 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ≤ (♯‘𝐴) ↔ 𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)})))
33	25, 32	bitr2d 279	. . . . . . . . . . 11 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)}) ↔ (♯‘𝐴) ∈ (ℤ_≥‘𝑓)))
34	33	pm5.32da 577	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((𝑓 ∈ ℕ ∧ 𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)})) ↔ (𝑓 ∈ ℕ ∧ (♯‘𝐴) ∈ (ℤ_≥‘𝑓))))
35	13	elin2 4196	. . . . . . . . . 10 ⊢ (𝑓 ∈ 𝐵 ↔ (𝑓 ∈ ℕ ∧ 𝑓 ∈ (^◡ < “ {((♯‘𝐴) + 1)})))
36		elfzuzb 13499	. . . . . . . . . . 11 ⊢ (𝑓 ∈ (1...(♯‘𝐴)) ↔ (𝑓 ∈ (ℤ_≥‘1) ∧ (♯‘𝐴) ∈ (ℤ_≥‘𝑓)))
37		elnnuz 12870	. . . . . . . . . . . 12 ⊢ (𝑓 ∈ ℕ ↔ 𝑓 ∈ (ℤ_≥‘1))
38	37	anbi1i 622	. . . . . . . . . . 11 ⊢ ((𝑓 ∈ ℕ ∧ (♯‘𝐴) ∈ (ℤ_≥‘𝑓)) ↔ (𝑓 ∈ (ℤ_≥‘1) ∧ (♯‘𝐴) ∈ (ℤ_≥‘𝑓)))
39	36, 38	bitr4i 277	. . . . . . . . . 10 ⊢ (𝑓 ∈ (1...(♯‘𝐴)) ↔ (𝑓 ∈ ℕ ∧ (♯‘𝐴) ∈ (ℤ_≥‘𝑓)))
40	34, 35, 39	3bitr4g 313	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑓 ∈ 𝐵 ↔ 𝑓 ∈ (1...(♯‘𝐴))))
41	40	eqrdv 2728	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐵 = (1...(♯‘𝐴)))
42		isoeq4 7319	. . . . . . . 8 ⊢ (𝐵 = (1...(♯‘𝐴)) → ((^◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶) ↔ (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), 𝐶)))
43	41, 42	syl 17	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((^◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶) ↔ (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), 𝐶)))
44	21, 43	mpbid 231	. . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), 𝐶))
45		fz1iso.4	. . . . . . . . . . . . . . . . . 18 ⊢ 𝑂 = OrdIso(𝑅, 𝐴)
46	45	oion 9533	. . . . . . . . . . . . . . . . 17 ⊢ (𝐴 ∈ Fin → dom 𝑂 ∈ On)
47	46	adantl 480	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ On)
48		simpr 483	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐴 ∈ Fin)
49		wofi 9294	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝑅 We 𝐴)
50	45	oien 9535	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐴 ∈ Fin ∧ 𝑅 We 𝐴) → dom 𝑂 ≈ 𝐴)
51	48, 49, 50	syl2anc 582	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ≈ 𝐴)
52		enfii 9191	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ Fin ∧ dom 𝑂 ≈ 𝐴) → dom 𝑂 ∈ Fin)
53	48, 51, 52	syl2anc 582	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ Fin)
54	47, 53	elind 4193	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ (On ∩ Fin))
55		onfin2 9233	. . . . . . . . . . . . . . 15 ⊢ ω = (On ∩ Fin)
56	54, 55	eleqtrrdi 2842	. . . . . . . . . . . . . 14 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ ω)
57		eqid 2730	. . . . . . . . . . . . . . . 16 ⊢ (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω) = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)
58		0z 12573	. . . . . . . . . . . . . . . 16 ⊢ 0 ∈ ℤ
59	5, 57, 4, 58	uzrdgxfr 13936	. . . . . . . . . . . . . . 15 ⊢ (dom 𝑂 ∈ ω → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + (1 − 0)))
60		1m0e1 12337	. . . . . . . . . . . . . . . 16 ⊢ (1 − 0) = 1
61	60	oveq2i 7422	. . . . . . . . . . . . . . 15 ⊢ (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + (1 − 0)) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1)
62	59, 61	eqtrdi 2786	. . . . . . . . . . . . . 14 ⊢ (dom 𝑂 ∈ ω → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1))
63	56, 62	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1))
64	51	ensymd 9003	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐴 ≈ dom 𝑂)
65		cardennn 9980	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ≈ dom 𝑂 ∧ dom 𝑂 ∈ ω) → (card‘𝐴) = dom 𝑂)
66	64, 56, 65	syl2anc 582	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (card‘𝐴) = dom 𝑂)
67	66	fveq2d 6894	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂))
68	57	hashgval 14297	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∈ Fin → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = (♯‘𝐴))
69	68	adantl 480	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = (♯‘𝐴))
70	67, 69	eqtr3d 2772	. . . . . . . . . . . . . 14 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) = (♯‘𝐴))
71	70	oveq1d 7426	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1) = ((♯‘𝐴) + 1))
72	63, 71	eqtrd 2770	. . . . . . . . . . . 12 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝐺‘dom 𝑂) = ((♯‘𝐴) + 1))
73	72	fveq2d 6894	. . . . . . . . . . 11 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺‘(𝐺‘dom 𝑂)) = (^◡𝐺‘((♯‘𝐴) + 1)))
74		isof1o 7322	. . . . . . . . . . . . 13 ⊢ (𝐺 Isom E , < (ω, ℕ) → 𝐺:ω–1-1-onto→ℕ)
75	9, 74	ax-mp 5	. . . . . . . . . . . 12 ⊢ 𝐺:ω–1-1-onto→ℕ
76		f1ocnvfv1 7276	. . . . . . . . . . . 12 ⊢ ((𝐺:ω–1-1-onto→ℕ ∧ dom 𝑂 ∈ ω) → (^◡𝐺‘(𝐺‘dom 𝑂)) = dom 𝑂)
77	75, 56, 76	sylancr 585	. . . . . . . . . . 11 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺‘(𝐺‘dom 𝑂)) = dom 𝑂)
78	73, 77	eqtr3d 2772	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺‘((♯‘𝐴) + 1)) = dom 𝑂)
79	78	ineq2d 4211	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ (^◡𝐺‘((♯‘𝐴) + 1))) = (ω ∩ dom 𝑂))
80		ordom 7867	. . . . . . . . . . 11 ⊢ Ord ω
81		ordelss 6379	. . . . . . . . . . 11 ⊢ ((Ord ω ∧ dom 𝑂 ∈ ω) → dom 𝑂 ⊆ ω)
82	80, 56, 81	sylancr 585	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ⊆ ω)
83		sseqin2 4214	. . . . . . . . . 10 ⊢ (dom 𝑂 ⊆ ω ↔ (ω ∩ dom 𝑂) = dom 𝑂)
84	82, 83	sylib 217	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ dom 𝑂) = dom 𝑂)
85	79, 84	eqtrd 2770	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ (^◡𝐺‘((♯‘𝐴) + 1))) = dom 𝑂)
86	14, 85	eqtrid 2782	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐶 = dom 𝑂)
87		isoeq5 7320	. . . . . . 7 ⊢ (𝐶 = dom 𝑂 → ((^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), 𝐶) ↔ (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), dom 𝑂)))
88	86, 87	syl 17	. . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), 𝐶) ↔ (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), dom 𝑂)))
89	44, 88	mpbid 231	. . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), dom 𝑂))
90	45	oiiso 9534	. . . . . 6 ⊢ ((𝐴 ∈ Fin ∧ 𝑅 We 𝐴) → 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴))
91	48, 49, 90	syl2anc 582	. . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴))
92		isotr 7335	. . . . 5 ⊢ (((^◡𝐺 ↾ 𝐵) Isom < , E ((1...(♯‘𝐴)), dom 𝑂) ∧ 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴)) → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴))
93	89, 91, 92	syl2anc 582	. . . 4 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴))
94		isof1o 7322	. . . 4 ⊢ ((𝑂 ∘ (^◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴) → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)):(1...(♯‘𝐴))–1-1-onto→𝐴)
95		f1of 6832	. . . 4 ⊢ ((𝑂 ∘ (^◡𝐺 ↾ 𝐵)):(1...(♯‘𝐴))–1-1-onto→𝐴 → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)):(1...(♯‘𝐴))⟶𝐴)
96	93, 94, 95	3syl 18	. . 3 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)):(1...(♯‘𝐴))⟶𝐴)
97		fzfid 13942	. . 3 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (1...(♯‘𝐴)) ∈ Fin)
98	96, 97	fexd 7230	. 2 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (^◡𝐺 ↾ 𝐵)) ∈ V)
99		isoeq1 7316	. 2 ⊢ (𝑓 = (𝑂 ∘ (^◡𝐺 ↾ 𝐵)) → (𝑓 Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴) ↔ (𝑂 ∘ (^◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴)))
100	98, 93, 99	spcedv 3587	1 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ∃𝑓 𝑓 Isom < , 𝑅 ((1...(♯‘𝐴)), 𝐴))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 = wceq 1539 ∃wex 1779 ∈ wcel 2104 Vcvv 3472 ∩ cin 3946 ⊆ wss 3947 {csn 4627 class class class wbr 5147 ↦ cmpt 5230 E cep 5578 Or wor 5586 We wwe 5629 ^◡ccnv 5674 dom cdm 5675 ↾ cres 5677 “ cima 5678 ∘ ccom 5679 Ord word 6362 Oncon0 6363 ⟶wf 6538 –1-1-onto→wf1o 6541 ‘cfv 6542 Isom wiso 6543 (class class class)co 7411 ωcom 7857 reccrdg 8411 ≈ cen 8938 Fincfn 8941 OrdIsocoi 9506 cardccrd 9932 0cc0 11112 1c1 11113 + caddc 11115 < clt 11252 ≤ cle 11253 − cmin 11448 ℕcn 12216 ℕ₀cn0 12476 ℤcz 12562 ℤ_≥cuz 12826 ...cfz 13488 ♯chash 14294

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189

This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7858 df-1st 7977 df-2nd 7978 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-1o 8468 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-oi 9507 df-card 9936 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-nn 12217 df-n0 12477 df-z 12563 df-uz 12827 df-fz 13489 df-hash 14295

This theorem is referenced by: fz1iso 14427

W3C validator